Display depolarizer
US5408357A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1992 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Nov 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0169
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high-contrast reflective display for use under high ambient light conditions for individuals wearing sunglasses and particularly polarized sunglasses includes a reflective target for a light emitting source of information to be displayed. The target is a relatively thin transparent polymeric film having a metalized rear reflective surface. The film, in a preferred embodiment, is a Mylar film having a thickness of from about 0.001-0.005 inches with a neutral density tint. The metal coating was aluminum vacuumed deposited on the film layer. The composite target can be adhered to a support using a suitable bonding adhesive applied to the metalized film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.